A clock controlled by a ESP8266, which shows the time and functions as a stopwatch.
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Perfore el tube de pegamento para que entre el led en cada extremo.
Then insert the glue stick with the led into the soda lid.
Join all the GND contacts in one wire; a join the positive contact of the led's of each segment.
I don't use a 74hc595 to control the led's, because a don't have four of them right now, instead i use a MC23017 to control the 7 segments.
The circuit is really basic:
The schematic is this
On the MCP23017 the pin's number 1 to 8 and 21 to 28 will be connected to the leds.
very cool project. I got glue sticks, leds and bottle caps..going to make one and try it out.
Thanks! I glad you liked, i need to buy more glue sticks to finish the build the others digits.
Guille
trialexhill
Adam Oakley
Marius Taciuc
Alain Mauer
A very cool way of using these 'resources'..
Thanks for sharing!